diff options
Diffstat (limited to 'lib/ssl/src/tls_handshake.erl')
| -rw-r--r-- | lib/ssl/src/tls_handshake.erl | 50 |
1 files changed, 35 insertions, 15 deletions
diff --git a/lib/ssl/src/tls_handshake.erl b/lib/ssl/src/tls_handshake.erl index 0a6cb9f92d..f34eebb0e4 100644 --- a/lib/ssl/src/tls_handshake.erl +++ b/lib/ssl/src/tls_handshake.erl @@ -56,7 +56,7 @@ client_hello(Host, Port, ConnectionStates, Version = tls_record:highest_protocol_version(Versions), Pending = ssl_record:pending_connection_state(ConnectionStates, read), SecParams = Pending#connection_state.security_parameters, - AvailableCipherSuites = ssl_handshake:available_suites(UserSuites, Version), + AvailableCipherSuites = ssl_handshake:available_suites(UserSuites, Version), Extensions = ssl_handshake:client_hello_extensions(Host, Version, AvailableCipherSuites, SslOpts, ConnectionStates, Renegotiation), @@ -80,13 +80,13 @@ client_hello(Host, Port, ConnectionStates, -spec hello(#server_hello{} | #client_hello{}, #ssl_options{}, #connection_states{} | {inet:port_number(), #session{}, db_handle(), atom(), #connection_states{}, - binary() | undefined}, + binary() | undefined, ssl_cipher:key_algo()}, boolean()) -> {tls_record:tls_version(), session_id(), #connection_states{}, alpn | npn, binary() | undefined}| {tls_record:tls_version(), {resumed | new, #session{}}, #connection_states{}, binary() | undefined, - #hello_extensions{}} | + #hello_extensions{}, {ssl_cipher:hash(), ssl_cipher:sign_algo()} | undefined} | #alert{}. %% %% Description: Handles a recieved hello message @@ -149,26 +149,35 @@ get_tls_handshake(Version, Data, Buffer) -> %%% Internal functions %%-------------------------------------------------------------------- handle_client_hello(Version, #client_hello{session_id = SugesstedId, - cipher_suites = CipherSuites, - compression_methods = Compressions, - random = Random, - extensions = #hello_extensions{elliptic_curves = Curves} = HelloExt}, - #ssl_options{versions = Versions} = SslOpts, - {Port, Session0, Cache, CacheCb, ConnectionStates0, Cert}, Renegotiation) -> + cipher_suites = CipherSuites, + compression_methods = Compressions, + random = Random, + extensions = #hello_extensions{elliptic_curves = Curves, + signature_algs = ClientHashSigns} = HelloExt}, + #ssl_options{versions = Versions, + signature_algs = SupportedHashSigns} = SslOpts, + {Port, Session0, Cache, CacheCb, ConnectionStates0, Cert, _}, Renegotiation) -> case tls_record:is_acceptable_version(Version, Versions) of true -> + AvailableHashSigns = available_signature_algs(ClientHashSigns, SupportedHashSigns, Cert, Version), ECCCurve = ssl_handshake:select_curve(Curves, ssl_handshake:supported_ecc(Version)), {Type, #session{cipher_suite = CipherSuite} = Session1} - = ssl_handshake:select_session(SugesstedId, CipherSuites, Compressions, + = ssl_handshake:select_session(SugesstedId, CipherSuites, AvailableHashSigns, Compressions, Port, Session0#session{ecc = ECCCurve}, Version, SslOpts, Cache, CacheCb, Cert), case CipherSuite of no_suite -> ?ALERT_REC(?FATAL, ?INSUFFICIENT_SECURITY); _ -> - handle_client_hello_extensions(Version, Type, Random, CipherSuites, HelloExt, - SslOpts, Session1, ConnectionStates0, - Renegotiation) + {KeyExAlg,_,_,_} = ssl_cipher:suite_definition(CipherSuite), + case ssl_handshake:select_hashsign(ClientHashSigns, Cert, KeyExAlg, SupportedHashSigns, Version) of + #alert{} = Alert -> + Alert; + HashSign -> + handle_client_hello_extensions(Version, Type, Random, CipherSuites, HelloExt, + SslOpts, Session1, ConnectionStates0, + Renegotiation, HashSign) + end end; false -> ?ALERT_REC(?FATAL, ?PROTOCOL_VERSION) @@ -245,14 +254,14 @@ enc_handshake(HandshakeMsg, Version) -> handle_client_hello_extensions(Version, Type, Random, CipherSuites, - HelloExt, SslOpts, Session0, ConnectionStates0, Renegotiation) -> + HelloExt, SslOpts, Session0, ConnectionStates0, Renegotiation, HashSign) -> try ssl_handshake:handle_client_hello_extensions(tls_record, Random, CipherSuites, HelloExt, Version, SslOpts, Session0, ConnectionStates0, Renegotiation) of #alert{} = Alert -> Alert; {Session, ConnectionStates, Protocol, ServerHelloExt} -> - {Version, {Type, Session}, ConnectionStates, Protocol, ServerHelloExt} + {Version, {Type, Session}, ConnectionStates, Protocol, ServerHelloExt, HashSign} catch throw:Alert -> Alert end. @@ -269,3 +278,14 @@ handle_server_hello_extensions(Version, SessionId, Random, CipherSuite, {Version, SessionId, ConnectionStates, ProtoExt, Protocol} end. +available_signature_algs(undefined, SupportedHashSigns, _, {Major, Minor}) when + (Major >= 3) andalso (Minor >= 3) -> + SupportedHashSigns; +available_signature_algs(#hash_sign_algos{hash_sign_algos = ClientHashSigns}, SupportedHashSigns, + _, {Major, Minor}) when (Major >= 3) andalso (Minor >= 3) -> + sets:to_list(sets:intersection(sets:from_list(ClientHashSigns), + sets:from_list(SupportedHashSigns))); +available_signature_algs(_, _, _, _) -> + undefined. + + |